Manufacture of iron carbonyl



Patented Aug. 20; 1929.

EAETIN KtTLLEn-oUnnAm,

STATES PATENT OFFICE.

01 LUDWIGSHAFEN-ON-THE-RHINE, GERMANY, AS-

SIGNOR TO I. Gr. FARBENINDUSTRIE AKTIENGESELLSCEAFT, OF FRANKFURT-ON- l'HE-EAIN, GERMANY, A CORPORATION OF GERMANY.

manor-across: or mom cannonn.

I10 Drawing. Application filed October 18, 1925, Serial No. 68,558 and in Germany January 5, 1925. i

In carrying out reactions in which gases are led over heated solid substances, for example catalysts, in vertical vessels it is usual to 1ntroduce the gases at the lower end and to withdraw them at the upper end of the vessel. This manner of working is employed with regard tothe natural flowing direction of gases eated within the vessel and has the advantags of avoiding troublesome gas vortices. It

has been found to be of particular advantage when working with gases under high pressures.

. I have now found that in contradistinction to this general rule, the production of iron carbonyl by the reaction of carbon monoxid with coarse grained iron under pressure is much more advantageously carried out with vertical reaction vessel containing the iron,

in a downward direction, 7

,In testimony whereof I have hereunto set my hand.

MARTIN MULLER-CUNRADI. 

